be careful with the earphone plug. its a known issue they WILL go bad and they will make your phone think there's a plug in at all times, rendering regular phone use/speaker phone useless.

i had one replaced under warranty and now refuse to use any headphone plug in devices because that is a known weakness of the treo. as i understand it, that weakness is still there in the newer 700 and 750 designs as well.

the BEST thing about the treo i like is the ability to tether to a laptop. i now have wireless internet access with my laptop anywhere my treo has data signal, especially at the desert racetracks i go to frequently... just uses my unlimited data plan. the 700+ series will give you better connection speeds. the 650 is limited to 56k or about... but better 56k then nothing at all right?